I would actually love to see Trolley busses in my city (Melbourne). You could have models with battery storage, so they charge up using the overhead tram lines we already have, and then can extend past the ends of them.
They have those in Vancouver, Canada as well, when I saw that for the first time (early 2000s) my reaction was "why are we too stupid to use those in Montreal?"
I believe they have these in Brisbane, Australia. This image is also from Australia somewhere given the street signs and what looks like the Australian Aboriginal flag (and possibly the normal Australian flag) in the background.
Of course, and busses (or at least trolley buses) are and for all of the foreseeable future will continue to be the best form of mass transport for rural, near rural, towns, and suburbs. I’m just jaded by politicians who seem to think that a big bus completely equivalent to a tram or light rail, and despise thouse who take half decent tram proposals and downgrade them once more into f-ing BRT, which is at best a slightly cheaper to build worse tram, and which rarely live up to even that goal.